title: Monodisperse pattern nanoalloying for synergistic intermetallic catalysis.
abstract: Nanoscale alloys attract enormous research attentions in catalysis, magnetics, plasmonics and so on. Along with multicomponent synergy, quantum confinement and extreme large surface area of nanoalloys offer novel material properties, precisely and broadly tunable with chemical composition and nanoscale dimension. Despite substantial progress of nanoalloy synthesis, the randomized positional arrangement and dimensional/compositional inhomogeneity of nanoalloys remain significant technological challenges for advanced applications. Here we present a generalized route to synthesize single-crystalline intermetallic nanoalloy arrays with dimensional and compositional uniformity via self-assembly. Specific electrostatic association of multiple ionic metal complexes within self-assembled nanodomains of block copolymers generated patterned monodisperse bimetallic/trimetallic nanoalloy arrays consisting of various elements, including Au, Co, Fe, Pd, and Pt. The precise controllability of size, composition, and intermetallic crystalline structure of nanoalloys facilitated tailored synergistic properties, such as accelerated catalytic growth of vertical carbon nanotubes from Fe-Co nanoalloy arrays.
authors.affiliation: Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS) , Daejeon 305-701, Republic of Korea.
authors.forename: Jeong Ho
authors.initials: JH
authors.lastname: Mun
authors.forename: Yun Hee
authors.initials: YH
authors.lastname: Chang
authors.forename: Dong Ok
authors.initials: DO
authors.lastname: Shin
authors.forename: Jong Moon
authors.initials: JM
authors.lastname: Yoon
authors.forename: Dong Sung
authors.initials: DS
authors.lastname: Choi
authors.forename: Kyung-Min
authors.initials: KM
authors.lastname: Lee
authors.forename: Ju Young
authors.initials: JY
authors.lastname: Kim
authors.forename: Seung Keun
authors.initials: SK
authors.lastname: Cha
authors.forename: Jeong Yong
authors.initials: JY
authors.lastname: Lee
authors.forename: Jong-Ryul
authors.initials: JR
authors.lastname: Jeong
authors.forename: Yong-Hyun
authors.initials: YH
authors.lastname: Kim
authors.forename: Sang Ouk
authors.initials: SO
authors.lastname: Kim